I am sure this has been discussed multiple times.
I have searched the forum and found nothing like my problem.
I have windows server 2003 it runs a incremental backup everyday.
but on saturday it runs a normal(full) backup. during the week it runs fine.
on the weekend it fails and gives me the E: is not a valid drive, or you do not have access.
I have checked security and NTBackup user has all the permissions for drive E:
and so does Backup Operators also. any ideas what else i should check?